White-Rodgers 1C20-102 Thermostat

The White-Rodgers 1C20-102 Thermostat is a reliable mechanical thermostat designed for 1-heat, 1-stage heating systems. This model uses an adjustable heat anticipator and 24 Volt AC operation to deliver precise temperature control for comfortable, consistent warmth.

Designed with a vertical cover and a durable bi-metal sensor, it suits wall installations where space and readability matter. The unit offers a 50–90°F operating range, a precise 2°F differential, and a fast-acting snap-action switch for dependable performance across seasonal temperature swings.

Terminals are labeled R and W, and the package includes a switching sub-base for easy wiring and quick setup. With robust construction and simple installation, this thermostat works well as a dependable replacement in many older heating systems.

• Mechanical thermostat with 24V AC operation
• 1-Heat, 1-Stage control
• Vertical cover design for wall mounting
• Bi-metal sensor with 2°F differential
• Includes switching sub-base for easy wiring